I've actually noticed a lot of the note systems gone from this; you used to be able to PM yourself as well, and to my knowledge that's gone. Though, that might be a consequence of enabling conversation PMs, which are the superior option IMO, and if there were a notepad, then that'd be fine.

That said, you an still ACCESS the old Notepad from the archives... But, can you submit new stuff to it? I've never actually tried that...